Let's divide 502375 by 21
Our goal is to divide 502375 by 21.

Going ahead to step 1:
The number 21 fits into 5 0 times, leaving a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Bring next digit (0) of the dividend behind the 5 and repeat the process: 50 / 21

On to step 2:
When dividing 50 by 21, we get 2 with a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Deduct 42 from 50 and we're left with 8.
Fetch the next digit (2) from the dividend, attach it to 8 and continue: 82 / 21

On to step 3:
21 can be fit into 82 3 times, resulting in a remainder of 19.
Put 3 as the next digit of the answer. 
Result so far: 23.0
The remainder is 19 after subtracting 63 from 82.
Include the next digit (3) from the dividend after 19, then repeat: 193 / 21

On to step 4:
21 goes into 193 9 times with a remainder of 4.
Write down 9 as next digit of the result. 
Result so far: 239.0
Subtracting 189 from 193 leaves us with 4.
Grab the next digit (7) from the dividend, add it to 4, then carry on: 47 / 21

On to step 5:
21 goes into 47 2 times with a remainder of 5.
The number 2 becomes the next digit in our result. 
Result so far: 2392.0
Subtracting 42 from 47 leaves us with 5.
Grab the next digit (5) from the dividend, add it to 5, then carry on: 55 / 21

Moving on to step 6:
If we divide 55 by 21, we get 2 and a remainder of 13.
Write down 2 as next digit of the result. 
Result so far: 23922.0
The remainder is 13 after subtracting 42 from 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 7:
When dividing 130 by 21, we get 6 with a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 23922.6
Subtract 126 from 130 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 8:
If we divide 40 by 21, we get 1 and a remainder of 19.
Record the quotient 1 as the next digit in the result. 
Result so far: 23922.61
Subtracting 21 from 40 leaves us with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Advancing to step 9:
190 divided by 21 is 9 with a remainder of 1.
The next digit of our result is 9. 
Result so far: 23922.619
Deduct 189 from 190 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 10:
21 goes into 10 0 times with a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 23922.619
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 11:
The number 21 fits into 100 4 times, leaving a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 23922.61904
Subtract 84 from 100 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 12:
160 divided by 21 is 7 with a remainder of 13.
The number 7 becomes the next digit in our result. 
Result so far: 23922.619047
Deduct 147 from 160 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 13:
21 can be fit into 130 6 times, resulting in a remainder of 4.
The next digit of our result is 6. 
Result so far: 23922.6190476
Subtract 126 from 130 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 14:
21 goes into 40 1 times with a remainder of 19.
The number 1 becomes the next digit in our result. 
Result so far: 23922.61904761
The remainder is 19 after subtracting 21 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Our division results in 23922.61904761 with a remaining 1.9e-08.